Wi Hyun-yi (August 5, 1991), known professionally as Wi Ha-jun (위하준), is a South Korean actor. He is best known for his role as Hwang Jun-ho in Squid Game (2021–2025). Wi has also starred in the films Gonjiam: Haunted Asylum (2018), Shark: The Beginning (2021) and Midnight (2021), as well as the television series Something in the Rain (2018), Romance Is a Bonus Book (2019), 18 Again (2020), Bad and Crazy (2021), Little Women (2022), The Worst of Evil (2023), and The Midnight Romance in Hagwon (2024). In 2022, Wi was named one of GQ Korea's Men of the Year. Wi is managed by MSTeam Entertainment.

Filmography

• Siren's Kiss — Cha Woo-seok
• Shark: The Storm — Jeong Do-hyeon
• The Midnight Romance in Hagwon — Lee Joon-ho
• Gyeongseong Creature — Kwon Jun-taek
• The Worst of Evil — Jung Gi-cheol
• Little Women — Choi Do-il
• Bad and Crazy — K
• 2021Midnight — Do-sik
• 2021Shark: The Beginning — Jeong Do-hyeon
• Squid Game — Hwang Jun-ho, Detective Hwang Jun-ho
• 18 Again — Ye Ji-hoon
• Fix You — Oh Yoo-Min
• 2019Miss & Mrs. Cops — Woo-jun
• Romance Is a Bonus Book — Ji Seo-joon
• 2018Gonjiam: Haunted Asylum — Ha-jun, Camera Operator
• Matrimonial Chaos — Im Shi-Ho
• Something in the Rain — Yun Seung-ho
• With Coffee — Lee Ha-Min
• 2017Anarchist from Colony — Young Korean Prisoner
• My Golden Life — Ryu Jae-Shin
• 2017The Chase — Young Jeong-hyuk
• 2016Eclipse — Jung-tae
• Goodbye Mr. Black — Ha Jun
• My Little Old Boy
• 2015Bad Guys Always Die — Cha Myung-ho
• 2015Coin Locker Girl — Young Woo-gon
• Alike
• Nam Eun-jeong — Park Seon-gyu
• 살생부 — Prince Suyang

Appearances as themselves (10)

• Chicken Sisters — Self
• Getaway and Go with Jangdobari — Self
• Heart on Wheels — Self
• 2025Squid Game: Making Season 2 — Self
• Here for Promo — Self
• Hong Seok-cheon's Jewelry Box — Self
• Salon Drip — Self
• Show!terview with Jessi — Self
• Amazing Saturday — Self
• Problem Child in House — Self